1 files changed, 260 insertions, 0 deletions
diff --git a/src/imports/widgets/graphicslayouts.cpp b/src/imports/widgets/graphicslayouts.cpp
new file mode 100644
index 0000000..fc15ad2
--- /dev/null
+++ b/src/imports/widgets/graphicslayouts.cpp
@@ -0,0 +1,260 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "graphicslayouts_p.h"
+
+#include <QtGui/qgraphicswidget.h>
+#include <QtCore/qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+LinearLayoutAttached::LinearLayoutAttached(QObject *parent)
+: QObject(parent), _stretch(1), _alignment(Qt::AlignCenter)
+{
+}
+
+void LinearLayoutAttached::setStretchFactor(int f)
+{
+    if (_stretch == f)
+        return;
+
+    _stretch = f;
+    emit stretchChanged(reinterpret_cast<QGraphicsLayoutItem*>(parent()), _stretch);
+}
+
+void LinearLayoutAttached::setAlignment(Qt::Alignment a)
+{
+    if (_alignment == a)
+        return;
+
+    _alignment = a;
+    emit alignmentChanged(reinterpret_cast<QGraphicsLayoutItem*>(parent()), _alignment);
+}
+
+QGraphicsLinearLayoutStretchItemObject::QGraphicsLinearLayoutStretchItemObject(QObject *parent)
+    : QObject(parent)
+{
+}
+
+QSizeF QGraphicsLinearLayoutStretchItemObject::sizeHint(Qt::SizeHint which, const QSizeF &constraint) const
+{
+Q_UNUSED(which);
+Q_UNUSED(constraint);
+return QSizeF();
+}
+
+
+QGraphicsLinearLayoutObject::QGraphicsLinearLayoutObject(QObject *parent)
+: QObject(parent)
+{
+}
+
+QGraphicsLinearLayoutObject::~QGraphicsLinearLayoutObject()
+{
+}
+
+void QGraphicsLinearLayoutObject::insertLayoutItem(int index, QGraphicsLayoutItem *item)
+{
+insertItem(index, item);
+
+//connect attached properties
+if (LinearLayoutAttached *obj = attachedProperties.value(item)) {
+    setStretchFactor(item, obj->stretchFactor());
+    setAlignment(item, obj->alignment());
+    QObject::connect(obj, SIGNAL(stretchChanged(QGraphicsLayoutItem*,int)),
+                     this, SLOT(updateStretch(QGraphicsLayoutItem*,int)));
+    QObject::connect(obj, SIGNAL(alignmentChanged(QGraphicsLayoutItem*,Qt::Alignment)),
+                     this, SLOT(updateAlignment(QGraphicsLayoutItem*,Qt::Alignment)));
+    //### need to disconnect when widget is removed?
+}
+}
+
+//### is there a better way to do this?
+void QGraphicsLinearLayoutObject::clearChildren()
+{
+for (int i = 0; i < count(); ++i)
+    removeAt(i);
+}
+
+void QGraphicsLinearLayoutObject::updateStretch(QGraphicsLayoutItem *item, int stretch)
+{
+QGraphicsLinearLayout::setStretchFactor(item, stretch);
+}
+
+void QGraphicsLinearLayoutObject::updateAlignment(QGraphicsLayoutItem *item, Qt::Alignment alignment)
+{
+QGraphicsLinearLayout::setAlignment(item, alignment);
+}
+
+QHash<QGraphicsLayoutItem*, LinearLayoutAttached*> QGraphicsLinearLayoutObject::attachedProperties;
+LinearLayoutAttached *QGraphicsLinearLayoutObject::qmlAttachedProperties(QObject *obj)
+{
+// ### This is not allowed - you must attach to any object
+if (!qobject_cast<QGraphicsLayoutItem*>(obj))
+    return 0;
+LinearLayoutAttached *rv = new LinearLayoutAttached(obj);
+attachedProperties.insert(qobject_cast<QGraphicsLayoutItem*>(obj), rv);
+return rv;
+}
+
+//////////////////////////////////////////////////////////////////////////////////////////////////////
+// QGraphicsGridLayout-related classes
+//////////////////////////////////////////////////////////////////////////////////////////////////////
+GridLayoutAttached::GridLayoutAttached(QObject *parent)
+: QObject(parent), _row(-1), _column(-1), _rowspan(1), _colspan(1), _alignment(-1)
+{
+}
+
+void GridLayoutAttached::setRow(int r)
+{
+    if (_row == r)
+        return;
+
+    _row = r;
+    //emit rowChanged(reinterpret_cast<QGraphicsLayoutItem*>(parent()), _row);
+}
+
+void GridLayoutAttached::setColumn(int c)
+{
+    if (_column == c)
+        return;
+
+    _column = c;
+    //emit columnChanged(reinterpret_cast<QGraphicsLayoutItem*>(parent()), _column);
+}
+
+void GridLayoutAttached::setRowSpan(int rs)
+{
+    if (_rowspan == rs)
+        return;
+
+    _rowspan = rs;
+    //emit rowSpanChanged(reinterpret_cast<QGraphicsLayoutItem*>(parent()), _rowSpan);
+}
+
+void GridLayoutAttached::setColumnSpan(int cs)
+{
+    if (_colspan == cs)
+        return;
+
+    _colspan = cs;
+    //emit columnSpanChanged(reinterpret_cast<QGraphicsLayoutItem*>(parent()), _columnSpan);
+}
+
+void GridLayoutAttached::setAlignment(Qt::Alignment a)
+{
+    if (_alignment == a)
+        return;
+
+    _alignment = a;
+    //emit alignmentChanged(reinterpret_cast<QGraphicsLayoutItem*>(parent()), _alignment);
+}
+
+QGraphicsGridLayoutObject::QGraphicsGridLayoutObject(QObject *parent)
+: QObject(parent)
+{
+}
+
+QGraphicsGridLayoutObject::~QGraphicsGridLayoutObject()
+{
+}
+
+void QGraphicsGridLayoutObject::addWidget(QGraphicsWidget *wid)
+{
+//use attached properties
+if (QObject *obj = attachedProperties.value(qobject_cast<QGraphicsLayoutItem*>(wid))) {
+    int row = static_cast<GridLayoutAttached *>(obj)->row();
+    int column = static_cast<GridLayoutAttached *>(obj)->column();
+    int rowSpan = static_cast<GridLayoutAttached *>(obj)->rowSpan();
+    int columnSpan = static_cast<GridLayoutAttached *>(obj)->columnSpan();
+    if (row == -1 || column == -1) {
+        qWarning() << "Must set row and column for an item in a grid layout";
+        return;
+    }
+    addItem(wid, row, column, rowSpan, columnSpan);
+}
+}
+
+void QGraphicsGridLayoutObject::addLayoutItem(QGraphicsLayoutItem *item)
+{
+//use attached properties
+if (GridLayoutAttached *obj = attachedProperties.value(item)) {
+    int row = obj->row();
+    int column = obj->column();
+    int rowSpan = obj->rowSpan();
+    int columnSpan = obj->columnSpan();
+    Qt::Alignment alignment = obj->alignment();
+    if (row == -1 || column == -1) {
+        qWarning() << "Must set row and column for an item in a grid layout";
+        return;
+    }
+    addItem(item, row, column, rowSpan, columnSpan);
+    if (alignment != -1)
+        setAlignment(item,alignment);
+}
+}
+
+//### is there a better way to do this?
+void QGraphicsGridLayoutObject::clearChildren()
+{
+for (int i = 0; i < count(); ++i)
+    removeAt(i);
+}
+
+qreal QGraphicsGridLayoutObject::spacing() const
+{
+if (verticalSpacing() == horizontalSpacing())
+    return verticalSpacing();
+return -1;  //###
+}
+
+QHash<QGraphicsLayoutItem*, GridLayoutAttached*> QGraphicsGridLayoutObject::attachedProperties;
+GridLayoutAttached *QGraphicsGridLayoutObject::qmlAttachedProperties(QObject *obj)
+{
+// ### This is not allowed - you must attach to any object
+if (!qobject_cast<QGraphicsLayoutItem*>(obj))
+    return 0;
+GridLayoutAttached *rv = new GridLayoutAttached(obj);
+attachedProperties.insert(qobject_cast<QGraphicsLayoutItem*>(obj), rv);
+return rv;
+}
+
+QT_END_NAMESPACE